Mercury ointment



J6EE 1P. SHEEPHERD, @F CHICAGQ, IllrLINOIS, ASSIGNQR, BY EIIESNE AQSEGNMENTS, T0

GEMICAE CQMIAIMY, it CGRPORATIQN 01? ILEIINOIS.

' mnnenn'r orn'rnnnr.

To all whom it may concem':

Be it known that 1, JOHN P. SHEPHERD, a citizen of the United States, and a resident of the city of Chicago, in the county ofCook and State of Illinois, have invented certain new and useful Improvements in a Mercury-Ointment; and I do hereby de clare that the following is a full, clear, andthis purpose is cholesterin, since among other properties, it is very readily absorbed by the shn'.

In preparing the ointment the metallic mercury is ground with or otherwise emulsified in the cholesterin to form a smooth paste. Preferably about equal parts of mer-i Specification of Letters Patent. Patented J 1L9, i921.

Application filed January at, 192i). Serial No. 353,817.-

curyand cholesterin are employed, but this ratiomay be varied through a wide range to suit difiering conditions.

if desired additional ingredients may be incorporated in the ointment such, for ex ample, as petrolatum to increase the unguent and other desirable properties of the ointment. 1 4

I claim as my intention:

1. An ointment comprising mercury and a vehicle consisting chiefly of free cholesteriii.

2. An ointment comprising substantially equal parts of metallic mercury and free cholesterin. 7 p

3. An ointment including mercury, free cholesterin, and an unguentary agent.

4. An'ointment including mercury, free cholesterin, and petrolatum.

In testimony whereof I have hereunto sub- .scribed my name in the presence of two subscribing witnesses; v JOHN P." SHEPHERD.

Witnesses: RrosnALn Ennis, EARL M. HARDINE. 

